Below that trio the only non-American in the next 17 places was Scotsman Sam Torrance, who shot 69.

Carnoustie, widely rated as the toughest links layout on the British Open championship rotation, is vastly different from most of the courses on the Champions Tour.

"It's a golf course where you can't be aggressive because you can't fly the ball at flags like we are used to over in the courses we play in America," said Blake, who had six birdies and two bogeys. "I have had to learn a whole new game, which is fun. It's exciting, but it's tough.

"I just tried to stay out of the death bunkers, as I call them, because it's a certain one-shot penalty getting in them."

Mason, playing in the afternoon after wind had subsided, was the only player to get to 5 under after a run of five birdies in six holes. His chances of an outright lead were ruined when his 3-iron approach to the 10th ended with his ball plugged in the face of a greenside bunker.

"It was so bad, there was no way I could get the ball out at the first attempt," he said after taking double-bogey 6.

PGA: Brent Delahoussaye shot 8-under 62 to match the Canadian Open record, making an eagle, seven birdies and a bogey in Toronto. The 29-year-old former Clemson player, whose lone pro win came in the 2006 Hooters Tour Classic, started on the ninth hole and played the front nine — his first and last eight holes — in 6-under 28. Because of logistical problems, players started on Nos. 1 and 9 instead of the usual first and 10th. "I've been hitting it well. I was just getting in my own way," he said. Four others have shot 62s in the Open, the first three at Glen Abbey. Leonard Thompson set the mark in 1981, Lakeland's Andy Bean in 1983 and Greg Norman in 1986, when par was 72. Hunter Mahan had 9-under 62 at Angus Glen in 2007.

LPGA: American Morgan Pressel birdied the first three holes en route to 6-under 66 to share the first-round lead of the Evian Masters in Evian-Les-Bains, France. Melissa Reid of England and Sun-Ju Ahn of South Korea each birdied the last hole to join Pressel. "It was a very solid day," Pressel said. "The only fairway I missed was on the last hole, and it was because it kind of got a weird bounce." Michelle Wie was tied for sixth at 68, and Seminole's Brittany Lincicome was tied for 26th at 70.

Louis leads: British Open champion Louis Oosthuizen shot 5-under 67 and was tied with Australia's Richard Green and American Dustin Johnson after the first round of the Scandinavian Masters in Stockholm.

Amateurs: Fourteen-year-old Robby Shelton of Wilmer, Ala., won twice to advance to the quarterfinals at the U.S. Junior Championship in Ada, Mich. … Medalist Danielle Kang of Thousand Oaks, Calif., won two matches to advance to the quarterfinals of the U.S. Girls Junior Championship in Pinehurst, N.C. Second-seeded Ginger Howard of Bradenton needed 22 holes to win in the second round, then lost in 19 holes in the third round.